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From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Originally Posted by devnull
Don't know how I missed this one Ken, but wow sorry about the issues! Subbed.
If things go past that cam, time for a new motor... Your attitude towards this is impressive.
Heh,.. I was going to start a new thread and link it to this one as I have an update
Got a call from the dealer this afternoon. All parts needed are in and they're going to "try like crazy" to have my car back to me on Wednesday, next week. They're open Saturdays so that does seem reasonable but we'll see. I said as long as things are done right, I'm good with even keeping it until Friday if need be.
I also told my buddy (the SM) that if something else is discovered I'm going to press for a new motor. He chuckled, I said "I'm serious". He said he KNOWS I am
Mine is auto Z06 it does it on its own I now have a range DOD eliminator when I see car if ever.
z51vett
Doug
Lotta patience going on here, Doug. Hope you get yours fixed. Also, Ken's patience and understanding is darned good, too. But I think if something else goes wrong, it really is time for a new engine, on the house. After all, it is under warranty.
I'd say if Ken trusts his dealer and the technicians then let them fix the motor... it will still have full warranty if anything goes wrong. I would agree that if they find anything wrong with the bottom end i.e. crank/rods/pistons then I'd push for a new crate motor.
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Just back from the dealer and had a chat with the tech.
He's now thinking maybe he can do the cam changeout with the block in the car - the only issue is that he needs to pull the oil pan and that is very difficult with the front end in place. But he says he's going to try as he doesn't want to pull it unless absolutely necessary. He also confirmed he knows about the torque tube alignment/rear engine seal issue.
Also, he showed me the cab lobe with the scoring (oh yea) and the matching scored lifter roller. Interestingly, the scored lifter/cam lobe was for cylinder 7 (driver side rear) which is not one of the AFM cylinders. So that was a problem in addition to the collapsed AFM lifter. He then said something I found interesting - that GM had a batch of cams that weren't hardened as much as they should have been and this failure was probably a good thing as the scoring would have gotten worse and when THAT failed...who knows. So, all new lifters and cam and hopefully, that is that.
Finally, he told me that GM said to change the AFM manifold as they suspect that is what caused the failed lifter as questionable oil delivery to the AFM lifters is a common cause of failure.
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Originally Posted by AORoads
Sure hope it works out ok!
I did tell the tech (his name is Rob) that I thought it was very nice of me to have this happen at only 2200+ miles so all the exhaust bolts weren't rusted, removed easily and the engine was clean overall
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Originally Posted by vette4lyn
Oh sweet Jesus, Mother of God.
This is the part that should bother anyone with a 2019
....GM had a batch of cams that weren't hardened as much as they should have been and this failure was probably a good thing as the scoring would have gotten worse and when THAT failed...who knows.
Every tuner pulls the engine for a cam swap because it's just easier. However your pictures show the correct GM tool to support the motor via the frame rails while they drop the front suspension cradle and oil pan.
The reason the oil pan has to come off for a cam swap is because the LT-1 oil pump is much bigger than the LS series motors. You cannot get it off without dropping the pan.
Makes a DIY garage can swap a huge PITA. Very interesting that your failed lifter was apparently secondary to the cam lobe failure.
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Originally Posted by Tool Hoarder
Every tuner pulls the engine for a cam swap because it's just easier. However your pictures show the correct GM tool to support the motor via the frame rails while they drop the front suspension cradle and oil pan.
The reason the oil pan has to come off for a cam swap is because the LT-1 oil pump is much bigger than the LS series motors. You cannot get it off without dropping the pan.
Makes a DIY garage can swap a huge PITA. Very interesting that your failed lifter was apparently secondary to the cam lobe failure.
Great info, thanks!
( I suspect you've been around a blocks a few times with this sort of thing!)
With all of the labor/parts involved...... to say nothing of the huge inconvenience to the owner/customer, would it not have been much more cost and time effective to just replace the engine and simply move on?!
Does GM ever offer monetary compensation to owners who are paying a monthly car payment or lease payment...... all the while their car is in a Chevrolet dealership service bay for weeks on end?!
So wait, I have a 2019. Are you saying that it would be better for me to put that monster Vengeance cam in now (for reliability's sake)? I think I can sell this, it's the procharger that I'll need a better excuse for!
THANKS for the pics and updates Ken, sounds like Rob is doing a great job. What month was your car built?
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Originally Posted by vette4lyn
With all of the labor/parts involved...... to say nothing of the huge inconvenience to the owner/customer, would it not have been much more cost and time effective to just replace the engine and simply move on?!
I suspect it's the bottom line - probably cheaper for them to fix than replace
Originally Posted by vette4lyn
Does GM ever offer monetary compensation to owners who are paying a monthly car payment or lease payment...... all the while their car is in a Chevrolet dealership service bay for weeks on end?!
Never heard of that, however the dealer did offer me a loaner but I turned it down (wouldn't have been a 'vette anyway)
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Originally Posted by devnull
So wait, I have a 2019. Are you saying that it would be better for me to put that monster Vengeance cam in now (for reliability's sake)? I think I can sell this, it's the procharger that I'll need a better excuse for!
THANKS for the pics and updates Ken, sounds like Rob is doing a great job. What month was your car built?
My TPW was 10/15. If you're serious about justifying a cam change, all things considered I think I'd look a bit deeper into the claim that Rob asserted. Not saying I don't believe him but substantiation is never a bad thing
